2577440

素因数分解:

$2^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1$

素因数の和:285

約数の個数: 48

約数和(自身を含む): 6191640

約数和(自身を除く): 3614200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 89, 160, 178, 181, 356, 362, 445, 712, 724, 890, 905, 1424, 1448, 1780, 1810, 2848, 2896, 3560, 3620, 5792, 7120, 7240, 14240, 14480, 16109, 28960, 32218, 64436, 80545, 128872, 161090, 257744, 322180, 515488, 644360, 1288720, 2577440]

約数ペア:

[(1, 2577440), (2, 1288720), (4, 644360), (5, 515488), (8, 322180), (10, 257744), (16, 161090), (20, 128872), (32, 80545), (40, 64436), (80, 32218), (89, 28960), (160, 16109), (178, 14480), (181, 14240), (356, 7240), (362, 7120), (445, 5792), (712, 3620), (724, 3560), (890, 2896), (905, 2848), (1424, 1810), (1448, 1780)]